| /* |
| * Copyright 2005 Balatoni Denes |
| * Copyright 2006 Loren Merritt |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "config.h" |
| #include "attributes.h" |
| #include "float_dsp.h" |
| #include "mem.h" |
| |
| static void vector_fmul_c(float *dst, const float *src0, const float *src1, |
| int len) |
| { |
| int i; |
| for (i = 0; i < len; i++) |
| dst[i] = src0[i] * src1[i]; |
| } |
| |
| static void vector_fmac_scalar_c(float *dst, const float *src, float mul, |
| int len) |
| { |
| int i; |
| for (i = 0; i < len; i++) |
| dst[i] += src[i] * mul; |
| } |
| |
| static void vector_fmul_scalar_c(float *dst, const float *src, float mul, |
| int len) |
| { |
| int i; |
| for (i = 0; i < len; i++) |
| dst[i] = src[i] * mul; |
| } |
| |
| static void vector_dmul_scalar_c(double *dst, const double *src, double mul, |
| int len) |
| { |
| int i; |
| for (i = 0; i < len; i++) |
| dst[i] = src[i] * mul; |
| } |
| |
| static void vector_fmul_window_c(float *dst, const float *src0, |
| const float *src1, const float *win, int len) |
| { |
| int i, j; |
| |
| dst += len; |
| win += len; |
| src0 += len; |
| |
| for (i = -len, j = len - 1; i < 0; i++, j--) { |
| float s0 = src0[i]; |
| float s1 = src1[j]; |
| float wi = win[i]; |
| float wj = win[j]; |
| dst[i] = s0 * wj - s1 * wi; |
| dst[j] = s0 * wi + s1 * wj; |
| } |
| } |
| |
| static void vector_fmul_add_c(float *dst, const float *src0, const float *src1, |
| const float *src2, int len){ |
| int i; |
| |
| for (i = 0; i < len; i++) |
| dst[i] = src0[i] * src1[i] + src2[i]; |
| } |
| |
| static void vector_fmul_reverse_c(float *dst, const float *src0, |
| const float *src1, int len) |
| { |
| int i; |
| |
| src1 += len-1; |
| for (i = 0; i < len; i++) |
| dst[i] = src0[i] * src1[-i]; |
| } |
| |
| static void butterflies_float_c(float *av_restrict v1, float *av_restrict v2, |
| int len) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) { |
| float t = v1[i] - v2[i]; |
| v1[i] += v2[i]; |
| v2[i] = t; |
| } |
| } |
| |
| float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len) |
| { |
| float p = 0.0; |
| int i; |
| |
| for (i = 0; i < len; i++) |
| p += v1[i] * v2[i]; |
| |
| return p; |
| } |
| |
| av_cold AVFloatDSPContext *avpriv_float_dsp_alloc(int bit_exact) |
| { |
| AVFloatDSPContext *fdsp = av_mallocz(sizeof(AVFloatDSPContext)); |
| if (!fdsp) |
| return NULL; |
| |
| fdsp->vector_fmul = vector_fmul_c; |
| fdsp->vector_fmac_scalar = vector_fmac_scalar_c; |
| fdsp->vector_fmul_scalar = vector_fmul_scalar_c; |
| fdsp->vector_dmul_scalar = vector_dmul_scalar_c; |
| fdsp->vector_fmul_window = vector_fmul_window_c; |
| fdsp->vector_fmul_add = vector_fmul_add_c; |
| fdsp->vector_fmul_reverse = vector_fmul_reverse_c; |
| fdsp->butterflies_float = butterflies_float_c; |
| fdsp->scalarproduct_float = avpriv_scalarproduct_float_c; |
| |
| if (ARCH_AARCH64) |
| ff_float_dsp_init_aarch64(fdsp); |
| if (ARCH_ARM) |
| ff_float_dsp_init_arm(fdsp); |
| if (ARCH_PPC) |
| ff_float_dsp_init_ppc(fdsp, bit_exact); |
| if (ARCH_X86) |
| ff_float_dsp_init_x86(fdsp); |
| if (ARCH_MIPS) |
| ff_float_dsp_init_mips(fdsp); |
| return fdsp; |
| } |
| |
| |
| #ifdef TEST |
| |
| #include <float.h> |
| #include <math.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #if HAVE_UNISTD_H |
| #include <unistd.h> /* for getopt */ |
| #endif |
| #if !HAVE_GETOPT |
| #include "compat/getopt.c" |
| #endif |
| |
| #include "common.h" |
| #include "cpu.h" |
| #include "internal.h" |
| #include "lfg.h" |
| #include "log.h" |
| #include "random_seed.h" |
| |
| #define LEN 240 |
| |
| static void fill_float_array(AVLFG *lfg, float *a, int len) |
| { |
| int i; |
| double bmg[2], stddev = 10.0, mean = 0.0; |
| |
| for (i = 0; i < len; i += 2) { |
| av_bmg_get(lfg, bmg); |
| a[i] = bmg[0] * stddev + mean; |
| a[i + 1] = bmg[1] * stddev + mean; |
| } |
| } |
| static int compare_floats(const float *a, const float *b, int len, |
| float max_diff) |
| { |
| int i; |
| for (i = 0; i < len; i++) { |
| if (fabsf(a[i] - b[i]) > max_diff) { |
| av_log(NULL, AV_LOG_ERROR, "%d: %- .12f - %- .12f = % .12g\n", |
| i, a[i], b[i], a[i] - b[i]); |
| return -1; |
| } |
| } |
| return 0; |
| } |
| |
| static void fill_double_array(AVLFG *lfg, double *a, int len) |
| { |
| int i; |
| double bmg[2], stddev = 10.0, mean = 0.0; |
| |
| for (i = 0; i < len; i += 2) { |
| av_bmg_get(lfg, bmg); |
| a[i] = bmg[0] * stddev + mean; |
| a[i + 1] = bmg[1] * stddev + mean; |
| } |
| } |
| |
| static int compare_doubles(const double *a, const double *b, int len, |
| double max_diff) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) { |
| if (fabs(a[i] - b[i]) > max_diff) { |
| av_log(NULL, AV_LOG_ERROR, "%d: %- .12f - %- .12f = % .12g\n", |
| i, a[i], b[i], a[i] - b[i]); |
| return -1; |
| } |
| } |
| return 0; |
| } |
| |
| static int test_vector_fmul(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const float *v1, const float *v2) |
| { |
| LOCAL_ALIGNED(32, float, cdst, [LEN]); |
| LOCAL_ALIGNED(32, float, odst, [LEN]); |
| int ret; |
| |
| cdsp->vector_fmul(cdst, v1, v2, LEN); |
| fdsp->vector_fmul(odst, v1, v2, LEN); |
| |
| if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON)) |
| av_log(NULL, AV_LOG_ERROR, "vector_fmul failed\n"); |
| |
| return ret; |
| } |
| |
| #define ARBITRARY_FMAC_SCALAR_CONST 0.005 |
| static int test_vector_fmac_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const float *v1, const float *src0, float scale) |
| { |
| LOCAL_ALIGNED(32, float, cdst, [LEN]); |
| LOCAL_ALIGNED(32, float, odst, [LEN]); |
| int ret; |
| |
| memcpy(cdst, v1, LEN * sizeof(*v1)); |
| memcpy(odst, v1, LEN * sizeof(*v1)); |
| |
| cdsp->vector_fmac_scalar(cdst, src0, scale, LEN); |
| fdsp->vector_fmac_scalar(odst, src0, scale, LEN); |
| |
| if (ret = compare_floats(cdst, odst, LEN, ARBITRARY_FMAC_SCALAR_CONST)) |
| av_log(NULL, AV_LOG_ERROR, "vector_fmac_scalar failed\n"); |
| |
| return ret; |
| } |
| |
| static int test_vector_fmul_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const float *v1, float scale) |
| { |
| LOCAL_ALIGNED(32, float, cdst, [LEN]); |
| LOCAL_ALIGNED(32, float, odst, [LEN]); |
| int ret; |
| |
| cdsp->vector_fmul_scalar(cdst, v1, scale, LEN); |
| fdsp->vector_fmul_scalar(odst, v1, scale, LEN); |
| |
| if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON)) |
| av_log(NULL, AV_LOG_ERROR, "vector_fmul_scalar failed\n"); |
| |
| return ret; |
| } |
| |
| static int test_vector_dmul_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const double *v1, double scale) |
| { |
| LOCAL_ALIGNED(32, double, cdst, [LEN]); |
| LOCAL_ALIGNED(32, double, odst, [LEN]); |
| int ret; |
| |
| cdsp->vector_dmul_scalar(cdst, v1, scale, LEN); |
| fdsp->vector_dmul_scalar(odst, v1, scale, LEN); |
| |
| if (ret = compare_doubles(cdst, odst, LEN, DBL_EPSILON)) |
| av_log(NULL, AV_LOG_ERROR, "vector_dmul_scalar failed\n"); |
| |
| return ret; |
| } |
| |
| #define ARBITRARY_FMUL_WINDOW_CONST 0.008 |
| static int test_vector_fmul_window(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const float *v1, const float *v2, const float *v3) |
| { |
| LOCAL_ALIGNED(32, float, cdst, [LEN]); |
| LOCAL_ALIGNED(32, float, odst, [LEN]); |
| int ret; |
| |
| cdsp->vector_fmul_window(cdst, v1, v2, v3, LEN / 2); |
| fdsp->vector_fmul_window(odst, v1, v2, v3, LEN / 2); |
| |
| if (ret = compare_floats(cdst, odst, LEN, ARBITRARY_FMUL_WINDOW_CONST)) |
| av_log(NULL, AV_LOG_ERROR, "vector_fmul_window failed\n"); |
| |
| return ret; |
| } |
| |
| #define ARBITRARY_FMUL_ADD_CONST 0.005 |
| static int test_vector_fmul_add(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const float *v1, const float *v2, const float *v3) |
| { |
| LOCAL_ALIGNED(32, float, cdst, [LEN]); |
| LOCAL_ALIGNED(32, float, odst, [LEN]); |
| int ret; |
| |
| cdsp->vector_fmul_add(cdst, v1, v2, v3, LEN); |
| fdsp->vector_fmul_add(odst, v1, v2, v3, LEN); |
| |
| if (ret = compare_floats(cdst, odst, LEN, ARBITRARY_FMUL_ADD_CONST)) |
| av_log(NULL, AV_LOG_ERROR, "vector_fmul_add failed\n"); |
| |
| return ret; |
| } |
| |
| static int test_vector_fmul_reverse(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const float *v1, const float *v2) |
| { |
| LOCAL_ALIGNED(32, float, cdst, [LEN]); |
| LOCAL_ALIGNED(32, float, odst, [LEN]); |
| int ret; |
| |
| cdsp->vector_fmul_reverse(cdst, v1, v2, LEN); |
| fdsp->vector_fmul_reverse(odst, v1, v2, LEN); |
| |
| if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON)) |
| av_log(NULL, AV_LOG_ERROR, "vector_fmul_reverse failed\n"); |
| |
| return ret; |
| } |
| |
| static int test_butterflies_float(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const float *v1, const float *v2) |
| { |
| LOCAL_ALIGNED(32, float, cv1, [LEN]); |
| LOCAL_ALIGNED(32, float, cv2, [LEN]); |
| LOCAL_ALIGNED(32, float, ov1, [LEN]); |
| LOCAL_ALIGNED(32, float, ov2, [LEN]); |
| int ret; |
| |
| memcpy(cv1, v1, LEN * sizeof(*v1)); |
| memcpy(cv2, v2, LEN * sizeof(*v2)); |
| memcpy(ov1, v1, LEN * sizeof(*v1)); |
| memcpy(ov2, v2, LEN * sizeof(*v2)); |
| |
| cdsp->butterflies_float(cv1, cv2, LEN); |
| fdsp->butterflies_float(ov1, ov2, LEN); |
| |
| if ((ret = compare_floats(cv1, ov1, LEN, FLT_EPSILON)) || |
| (ret = compare_floats(cv2, ov2, LEN, FLT_EPSILON))) |
| av_log(NULL, AV_LOG_ERROR, "butterflies_float failed\n"); |
| |
| return ret; |
| } |
| |
| #define ARBITRARY_SCALARPRODUCT_CONST 0.2 |
| static int test_scalarproduct_float(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, |
| const float *v1, const float *v2) |
| { |
| float cprod, oprod; |
| int ret; |
| |
| cprod = cdsp->scalarproduct_float(v1, v2, LEN); |
| oprod = fdsp->scalarproduct_float(v1, v2, LEN); |
| |
| if (ret = compare_floats(&cprod, &oprod, 1, ARBITRARY_SCALARPRODUCT_CONST)) |
| av_log(NULL, AV_LOG_ERROR, "scalarproduct_float failed\n"); |
| |
| return ret; |
| } |
| |
| int main(int argc, char **argv) |
| { |
| int ret = 0, seeded = 0; |
| uint32_t seed; |
| AVFloatDSPContext *fdsp, *cdsp; |
| AVLFG lfg; |
| |
| LOCAL_ALIGNED(32, float, src0, [LEN]); |
| LOCAL_ALIGNED(32, float, src1, [LEN]); |
| LOCAL_ALIGNED(32, float, src2, [LEN]); |
| LOCAL_ALIGNED(32, double, dbl_src0, [LEN]); |
| LOCAL_ALIGNED(32, double, dbl_src1, [LEN]); |
| |
| for (;;) { |
| int arg = getopt(argc, argv, "s:c:"); |
| if (arg == -1) |
| break; |
| switch (arg) { |
| case 's': |
| seed = strtoul(optarg, NULL, 10); |
| seeded = 1; |
| break; |
| case 'c': |
| { |
| int cpuflags = av_get_cpu_flags(); |
| |
| if (av_parse_cpu_caps(&cpuflags, optarg) < 0) |
| return 1; |
| |
| av_force_cpu_flags(cpuflags); |
| break; |
| } |
| } |
| } |
| if (!seeded) |
| seed = av_get_random_seed(); |
| |
| av_log(NULL, AV_LOG_INFO, "float_dsp-test: %s %u\n", seeded ? "seed" : "random seed", seed); |
| |
| fdsp = avpriv_float_dsp_alloc(1); |
| av_force_cpu_flags(0); |
| cdsp = avpriv_float_dsp_alloc(1); |
| |
| if (!fdsp || !cdsp) { |
| ret = 1; |
| goto end; |
| } |
| |
| av_lfg_init(&lfg, seed); |
| |
| fill_float_array(&lfg, src0, LEN); |
| fill_float_array(&lfg, src1, LEN); |
| fill_float_array(&lfg, src2, LEN); |
| |
| fill_double_array(&lfg, dbl_src0, LEN); |
| fill_double_array(&lfg, dbl_src1, LEN); |
| |
| if (test_vector_fmul(fdsp, cdsp, src0, src1)) |
| ret -= 1 << 0; |
| if (test_vector_fmac_scalar(fdsp, cdsp, src2, src0, src1[0])) |
| ret -= 1 << 1; |
| if (test_vector_fmul_scalar(fdsp, cdsp, src0, src1[0])) |
| ret -= 1 << 2; |
| if (test_vector_fmul_window(fdsp, cdsp, src0, src1, src2)) |
| ret -= 1 << 3; |
| if (test_vector_fmul_add(fdsp, cdsp, src0, src1, src2)) |
| ret -= 1 << 4; |
| if (test_vector_fmul_reverse(fdsp, cdsp, src0, src1)) |
| ret -= 1 << 5; |
| if (test_butterflies_float(fdsp, cdsp, src0, src1)) |
| ret -= 1 << 6; |
| if (test_scalarproduct_float(fdsp, cdsp, src0, src1)) |
| ret -= 1 << 7; |
| if (test_vector_dmul_scalar(fdsp, cdsp, dbl_src0, dbl_src1[0])) |
| ret -= 1 << 8; |
| |
| end: |
| av_freep(&fdsp); |
| av_freep(&cdsp); |
| return ret; |
| } |
| |
| #endif /* TEST */ |